Find the missing number in the following?
5,22,68,153,287, .........., ?
Find the missing number
3,7,9,13,15,19,-------,25,......
Find the missing numbers in this series:
2,6,18,54,-----------------486,1458
What is the missing number ‘X’ of the series 7, X, 21, 31, 43?
32. Consider the following matrix:3 8 10 2 ? 16 56 90 2 20 0What is the missing number at ‘?’ in the matrix?